Kurarinone CAS NO.34981-26-5

Min.Order: 10 Milligram
Payment Terms: T/T
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Product Details

Keywords

Kurarinone
34981-26-5
standard supplier in China

Quick Details

ProName: Kurarinone
CasNo: 34981-26-5
Molecular Formula: C26H30O6
Appearance: detailed see specifications
Application: analysis,activity test,Botanical Refer...
DeliveryTime: 1-3?working?days?after?confirming?the?...
PackAge: According to the clients requirement.
Port: China main port
ProductionCapacity: 1 Metric Ton/Day
Purity: ≥98%
Storage: Store at 2~8°C
Transportation: by air or by ocean shipping
LimitNum: 10 Milligram
Plant of Origin: Chinese herbal medicine
Testing Method: NMR/MS/HPLC
Product Ecification: 1mg-1kg
Heavy Metal: <10ppm
Voluntary Standards: company standard
Storage: Store in dry, dark and ventilated plac...
PackAge: Brown vial HDPE plastic bottle

Superiority

Hubei CuiRan Biotechnology Co., Ltd is a leading company in the research, development, manufacture and marketing of High Quality Phytochemicals and Extracts(especially Active Ingredients from Traditional Chinese Medicine，Traditional Chinese Medicine), Natural Active Pharmaceutical Ingredients worldwide. From small quantities for R&D or reference standard, to large quantities for customizing or manufacturing, Biopurify emphasizes on consistent and reliable services for his customers.
With excellent quality products and good service, we have clients from more than dozens countries and regions, and we pride ourselves in providing our customers with a total satisfaction experiences.
We are doing our best to be your reliable partner for high quality Phytochemicals and Reference Standards from china.

Our main services:
A. Supply active ingredients and reference standards ofTraditional Chinese Medicine, from mgs to kgs scale.
B. Custom extraction and purification, target Herb Active Ingredients
C. Custom synthesis and semi-synthesis for Natural Active Ingredients
D. CR, CM and PD services from lab scale, pilot scale to commercial scale(GMP is also available)
E.Traditional Chinese Medicine compounds library

1.Provide traditional Chinese medicine reference materials and natural active ingredients;
2.More than 2200 compounds are available for selection, continuously building high-quality natural product libraries for drug research and development;
3.Provide various screening libraries and more inhibitor products;
4.Provide separation and structural determination of natural products;
5.Laboratory scale pilot to commercial scale collaborative research and process development services.More than 180 experiences in phytochemistry (still increasing)
Each product has passed very strict testing (NMR/MS/HPLC)
Agents from many countries

General tips：For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging：1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition：Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Details

Chemical Properties of Kurarinone

Cas No.	34981-26-5	SDF
PubChem ID	11982640	Appearance	Powder
Formula	C₂₆H₃₀O₆	M.Wt	438.5
Type of Compound	Flavonoids	Storage	Desiccate at -20°C
Solubility	Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name	(2S)-2-(2,4-dihydroxyphenyl)-7-hydroxy-5-methoxy-8-[(2R)-5-methyl-2-prop-1-en-2-ylhex-4-enyl]-2,3-dihydrochromen-4-one
SMILES	CC(=CCC(CC1=C2C(=C(C=C1O)OC)C(=O)CC(O2)C3=C(C=C(C=C3)O)O)C(=C)C)C
Standard InChIKey	LTTQKYMNTNISSZ-MWTRTKDXSA-N
Standard InChI	InChI=1S/C26H30O6/c1-14(2)6-7-16(15(3)4)10-19-21(29)12-24(31-5)25-22(30)13-23(32-26(19)25)18-9-8-17(27)11-20(18)28/h6,8-9,11-12,16,23,27-29H,3,7,10,13H2,1-2,4-5H3/t16-,23+/m1/s1
General tips	For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging	1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment.
Shipping Condition	Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of Kurarinone

The roots of Sophora flavescens Ait.

Biological Activity of Kurarinone

Description	Kurarinone exhibits anti-tumor, estrogenic, and anti-inflammatory activities, it also shows strong inhibitory effect on immune responses. Kurarinone may ameliorate chronic inflammatory skin diseases through the suppression of pathogenic CD4(+) T-cell differentiation and the overall immune response. Kurarinone sensitizes TNF-related apoptosis inducing ligand (TRAIL)-induced tumor cell apoptosis via suppression of NF-κB-dependent cFLIP expression; it may be by way of down-regulating Smad3 expression to interfere its induction on intercellular signal transduction and consequently ameliorate renal interstitial fibrosis.
Targets	JAK \| STAT \| NF-kB \| Bcl-2/Bax \| IkB \| IKK \| TNF-α \| CD4(+)
In vitro	Estrogenic and anticarcinogenic properties of kurarinone, a lavandulyl flavanone from the roots of Sophora flavescens.[Pubmed: 15568770 ] J. Nat.Prod., 2004, 67(11):1829-32. Kurarinone, a lavandulyl flavanone, was isolated from a polyphenolic extract of the roots of Sophora flavescens using fractionation guided by estrogenic activity, which was determined by recombinant yeast and Ishikawa Var-I bioassays. METHODS AND RESULTS: Kurarinone showed weak estrogenic activity both in the yeast screen and in the Ishikawa Var-I assay with EC(50) values of 4.6 and 1.66 microM, respectively. Furthermore, Kurarinone was found to have potent cytotoxic activity (IC(50) value = 22.2 microM) against human MCF-7/6 breast cancer cells in the sulforhodamine-B assay.
In vivo	Kurarinone regulates immune responses through regulation of the JAK/STAT and TCR-mediated signaling pathways.[Pubmed: 23333426 ] Biochem. Pharmacol., 2013, 85(8):1134-44. Sophora flavescens is a medicinal herb that contains flavonoids and quinolizidine alkaloids and has a wide range of biological activities due to its anti-inflammatory, anti-bacterial and anti-cancer properties. We isolated a series of flavonoids from the roots of Sophora flavescens and examined their ability to inhibit immune responses. METHODS AND RESULTS: Among the flavonoids, Kurarinone exhibited the strongest inhibitory effect on immune responses. Kurarinone suppressed the differentiation of CD4(+) T cells by inhibiting the expression and production of T-cell lineage-specific master regulators and cytokines. Our results also demonstrated that Kurarinone directly suppressed the cytokine-induced Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling and T-cell receptor (TCR) pathways. In two established animal models of chronic inflammatory skin disease, one in which psoriasis-like skin disease was induced by an interleukin 23 (IL-23) injection into mouse ears and another in which 2,4,6-trinitrochlorobenzene (TNCB) application on the abdomens of mice was used to induce contact dermatitis, Kurarinone repressed disease development by inhibiting the expression of pro-inflammatory mediators, including cytokines, chemokines and enzyme in murine ear skin. CONCLUSIONS: This study provides new evidence that Kurarinone may ameliorate chronic inflammatory skin diseases through the suppression of pathogenic CD4(+) T-cell differentiation and the overall immune response.

Protocol of Kurarinone

Kinase Assay

Kurarinone promotes TRAIL-induced apoptosis by inhibiting NF-κB-dependent cFLIP expression in HeLa cells.[Pubmed: 22932446 ]

Exp. Mol. Med., 2012, 44(11): 653-64.

This study was designed to investigate the effects of the prenylated flavonoid Kurarinone on TNF-related apoptosis inducing ligand (TRAIL)-induced apoptosis and its underlying mechanism.
METHODS AND RESULTS:
A low dose of Kurarinone had no significant effect on apoptosis, but this compound markedly promoted tumor cell death through elevation of Bid cleavage, cytochrome c release release and caspase activation in HeLa cells treated with TRAIL. Caspase inhibitors inhibited Kurarinone-mediated cell death, which indicates that the cytotoxic effect of this compound is mediated by caspase-dependent apoptosis. The cytotoxic effect of Kurarinone was not associated with expression levels of Bcl-2 and IAP family proteins, such as Bcl-2, Bcl-xL, Bid, Bad, Bax, XIAP, cIAP-1 and cIAP-2. In addition, this compound did not regulate the death-inducing receptors DR4 and DR5. On the other hand, Kurarinone significantly inhibited TRAIL-induced IKK activation, IκB degradation and nuclear translocation of NF-κB, as well as effectively suppressed cellular FLICE-inhibitory protein long form (cFLIPL) expression. The synergistic effects of Kurarinone on TRAIL-induced apoptosis were mimicked when Kurarinone was replaced by the NF-κB inhibitor withaferin A or following siRNA-mediated knockdown of cFLIPL. Moreover, cFLIP overexpression effectively antagonized Kurarinone-mediated TRAIL sensitization.
CONCLUSIONS:
These data suggest that Kurarinone sensitizes TRAIL-induced tumor cell apoptosis via suppression of NF-κB-dependent cFLIP expression, indicating that this compound can be used as an anti-tumor agent in combination with TRAIL.

Preparing Stock Solutions of Kurarinone

	1 mg	5 mg	10 mg	20 mg	25 mg
1 mM	2.2805 mL	11.4025 mL	22.805 mL	45.61 mL	57.0125 mL
5 mM	0.4561 mL	2.2805 mL	4.561 mL	9.122 mL	11.4025 mL
10 mM	0.2281 mL	1.1403 mL	2.2805 mL	4.561 mL	5.7013 mL
50 mM	0.0456 mL	0.2281 mL	0.4561 mL	0.9122 mL	1.1403 mL
100 mM	0.0228 mL	0.114 mL	0.2281 mL	0.4561 mL	0.5701 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.